Mark all private functions in dart: libraries as invisible (*sniff*).

sdk/lib/io/file_system_entity.dart

Index: sdk/lib/io/file_system_entity.dart
diff --git a/sdk/lib/io/file_system_entity.dart b/sdk/lib/io/file_system_entity.dart
index ee4312fbe9ac72042f194134da3ba0c676058f23..5c15c1c8c87d99906fe76572e1474861de86d72f 100644
--- a/sdk/lib/io/file_system_entity.dart
+++ b/sdk/lib/io/file_system_entity.dart
@@ -124,7 +124,7 @@ class FileStat {
     if (Platform.isWindows) {
       path = FileSystemEntity._trimTrailingPathSeparators(path);
     }
-    return _IOService.dispatch(_FILE_STAT, [path]).then((response) {
+    return _IOService._dispatch(_FILE_STAT, [path]).then((response) {
       if (_isErrorResponse(response)) {
         return FileStat._notFound;
       }
@@ -295,7 +295,7 @@ abstract class FileSystemEntity {
    * behavior.
    */
   Future<String> resolveSymbolicLinks() {
-    return _IOService.dispatch(_FILE_RESOLVE_SYMBOLIC_LINKS, [path])
+    return _IOService._dispatch(_FILE_RESOLVE_SYMBOLIC_LINKS, [path])
         .then((response) {
           if (_isErrorResponse(response)) {
             throw _exceptionFromResponse(response,
@@ -459,7 +459,7 @@ abstract class FileSystemEntity {
    * to an object that does not exist.
    */
   static Future<bool> identical(String path1, String path2) {
-    return _IOService.dispatch(_FILE_IDENTICAL, [path1, path2]).then((response) {
+    return _IOService._dispatch(_FILE_IDENTICAL, [path1, path2]).then((response) {
       if (_isErrorResponse(response)) {
         throw _exceptionFromResponse(response,
             "Error in FileSystemEntity.identical($path1, $path2)", "");
@@ -657,7 +657,7 @@ abstract class FileSystemEntity {
   }
 
   static Future<int> _getTypeAsync(String path, bool followLinks) {
-    return _IOService.dispatch(_FILE_TYPE, [path, followLinks])
+    return _IOService._dispatch(_FILE_TYPE, [path, followLinks])
       .then((response) {
         if (_isErrorResponse(response)) {
           throw _exceptionFromResponse(response, "Error getting type", path);